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Gupta S, DeAngelo J, Melamed I, Walter JE, Kobayashi AL, Bridges T, Sublett JW, Bernstein JA, Koterba A, Manning M, Maltese J, Hoeller S, Turpel-Kantor E, Kreuwel H, Kobayashi RH. Subcutaneous Immunoglobulin 16.5% (Cutaquig®) in Primary Immunodeficiency Disease: Safety, Tolerability, Efficacy, and Patient Experience with Enhanced Infusion Regimens. J Clin Immunol 2023:10.1007/s10875-023-01509-4. [PMID: 37160610 PMCID: PMC10169187 DOI: 10.1007/s10875-023-01509-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 05/03/2023] [Indexed: 05/11/2023]
Abstract
PURPOSE To achieve reductions in infusion time, infusion sites, and frequency, a prospective, open-label, multicenter, Phase 3 study evaluated the safety, efficacy, and tolerability of subcutaneous immunoglobulin (SCIG) 16.5% (Cutaquig®, Octapharma) at enhanced infusion regimens. METHODS Three separate cohorts received SCIG 16.5% evaluating volume, rate, and frequency: Cohort 1) volume assessment/site: up to a maximum 100 mL/site; Cohort 2) infusion flow rate/site: up to a maximum of 100 mL/hr/site or the maximum flow rate achievable by the tubing; Cohort 3) infusion frequency: every other week at twice the patient's weekly dose. RESULTS For Cohort 1 (n = 15), the maximum realized volume per site was 108 mL/site, exceeding the currently labeled (US) maximum (up to 40 mL/site for adults). In Cohort 2 (n = 15), the maximum realized infusion flow rate was 67.5 mL/hr/site which is also higher than the labeled (US) maximum (up to 52 mL/hr/site). In Cohort 3 (n = 34), the mean total trough levels for every other week dosing demonstrated equivalency to weekly dosing (p value = 0.0017). All regimens were well tolerated. There were no serious bacterial infections (SBIs). Most patients had mild (23.4%) or moderate (56.3%) adverse events. The majority of patients found the new infusion regimens to be better or somewhat better than their previous regimens and reported that switching to SCIG 16.5% was easy. CONCLUSIONS SCIG 16.5% (Cutaquig®), infusions are efficacious, safe, and well tolerated with reduced infusion time, fewer infusion sites, and reduced frequency. Further, the majority of patients found the new infusion regimens to be better or somewhat better than their previous regimens.
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Affiliation(s)
| | | | | | | | | | - Tracy Bridges
- Allergy and Asthma Clinics of Georgia, Albany, GA, USA
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2
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Li Z, Follman K, Freshwater E, Engler F, Yel L. Integrated population pharmacokinetics of immunoglobulin G following intravenous or subcutaneous administration of various immunoglobulin products in patients with primary immunodeficiencies. Int Immunopharmacol 2022; 113:109331. [DOI: 10.1016/j.intimp.2022.109331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 09/29/2022] [Accepted: 10/07/2022] [Indexed: 11/11/2022]
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Danieli MG, Verga JU, Mezzanotte C, Terrenato I, Svegliati S, Bilo MB, Moroncini G. Replacement and Immunomodulatory Activities of 20% Subcutaneous Immunoglobulin Treatment: A Single-Center Retrospective Study in Autoimmune Myositis and CVID Patients. Front Immunol 2022; 12:805705. [PMID: 35111165 PMCID: PMC8801806 DOI: 10.3389/fimmu.2021.805705] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Accepted: 12/27/2021] [Indexed: 12/27/2022] Open
Abstract
Background Immunoglobulin (Ig) replacement therapy represents a life-saving treatment in primary antibody deficiencies. The introduction of subcutaneous Ig (SCIg) administration brings a major improvement in quality of life for patients, compared to the traditional intravenous administration. In recent years, an additional role has been proposed for Ig therapy for various inflammatory and immune-mediated diseases. Consequently, the use of SCIg has expanded from immunodeficiencies to immune-mediated diseases, such as polymyositis (PM) and dermatomyositis (DM). Given the rarity of these conditions, it is still difficult to evaluate the real impact of SCIg treatment on PM and DM, and additional data are constantly required on this topic, particularly for long-term treatments in real-life settings. Aim This study aimed to increase the knowledge about the anti-inflammatory and immunomodulatory effects of SCIg treatment for myositis. To this aim, a long-term evaluation of the effectiveness of 20% human SCIg treatment (20% SCIg, Hizentra®, CSL Behring) was carried out in patients with PM/DM in care at our Center. In addition, an evaluation of the 20% SCIg therapy in CVID patients was provided. This analysis, beside adding knowledge about the use of SCIg therapy in this real-life setting, was intended as a term of comparison, regarding the safety profile. Results Results support the beneficial effect and tolerability of long-term 20% SCIg therapy in PM/DM patients, reporting a significant improvement in creatine kinase levels, muscle strength, skin conditions, dysphagia, disease activity (MITAX score) and disability (HAQ-DI score). None of the patients reported systemic reactions. The duration of the reported local reactions was a few hours in 80% of the patients, and all resolved spontaneously. CVID patients reported an improvement in all the considered effectiveness parameters at the end of 20% SCIg therapy. The frequency of the adverse events reported by PM/DM patients was not different from what reported in CVID patients, where the use of SCIg therapy is more consolidated Conclusions This study suggests that 20% SCIg treatment represents a viable and safe treatment for PM/DM patients and a valid therapeutic alternative to IVIg, with important advantages for patients’ quality of life.
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Affiliation(s)
- Maria Giovanna Danieli
- Department of Clinical and Molecular Sciences, Marche Polytechnic University, Ancona, Italy.,Clinica Medica, Department of Internal Medicine, Ospedali Riuniti, Ancona, Italy
| | - Jacopo Umberto Verga
- Department of Life and Environmental Sciences, Polytechnic University of Marche, Ancona, Italy.,The Science Foundation Ireland (SFI) Centre for Research Training in Genomics Data Science, National University of Ireland, Galway, Ireland
| | - Cristina Mezzanotte
- Internal Medicine Residency Program, Marche Polytechnic University, Ancona, Italy
| | - Irene Terrenato
- Biostatistics and Bioinformatic Unit, Scientific Direction, IRCCS Regina Elena Cancer Institute, Rome, Italy
| | - Silvia Svegliati
- Department of Clinical and Molecular Sciences, Marche Polytechnic University, Ancona, Italy
| | - Maria Beatrice Bilo
- Department of Clinical and Molecular Sciences, Marche Polytechnic University, Ancona, Italy.,Allergy Unit, Department of Internal Medicine, Ospedali Riuniti, Ancona, Italy
| | - Gianluca Moroncini
- Department of Clinical and Molecular Sciences, Marche Polytechnic University, Ancona, Italy.,Clinica Medica, Department of Internal Medicine, Ospedali Riuniti, Ancona, Italy
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Pharmacokinetic modeling and simulation of subcutaneous and intravenous IgG dosing in patients with primary immunodeficiency diseases. Int Immunopharmacol 2022; 104:108472. [PMID: 35008008 DOI: 10.1016/j.intimp.2021.108472] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 12/07/2021] [Accepted: 12/14/2021] [Indexed: 11/22/2022]
Abstract
A population pharmacokinetic (PK) model for comparing the PK of subcutaneously administered immunoglobulin G (IgG) replacement therapy (SCIG) with Gamunex-C 10% or SCIG 20% formulations in patients with primary immunodeficiency diseases was developed using data from 3 clinical trials (N = 95, 69.5% adults, 30.5% <18 years) of intravenous IG (IVIG) 10% and SCIG 10% or SCIG 20%. Serum IgG exposure following switches from IVIG 10% every 3 or 4 weeks to biweekly SCIG 20% (dose adjustment factor 1.0 or 1.37) and from weekly SCIG 20% to biweekly SCIG 20% or SCIG 20% 2-7 times/week was simulated. The PK of IVIG 10% and SCIG 20% were adequately described by a 2-compartment model with first-order absorption rate constant of exogenous IgG from an SC depot compartment into the central compartment and first-order elimination from the central compartment. Switching from IVIG 10% every 4 weeks to biweekly SCIG 20% produced similar serum IgG exposure, with lower peak and higher trough serum IgG concentrations. Switching from IVIG 10% every 3 or 4 weeks to weekly and biweekly SCIG 20% yielded comparable IgG exposure and clinically effective trough IgG concentrations.
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5
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Li Z, Dumas T, Seth Berry N, McCoy B, Yel L. Population pharmacokinetic simulation of varied Immune Globulin Subcutaneous (Human), 20% solution (Ig20Gly) loading and maintenance dosing regimens in immunoglobulin-naïve patients with primary immunodeficiency diseases. Int Immunopharmacol 2021; 100:108044. [PMID: 34601202 DOI: 10.1016/j.intimp.2021.108044] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 07/29/2021] [Accepted: 08/01/2021] [Indexed: 11/16/2022]
Abstract
BACKGROUND The pharmacokinetics of Ig20Gly, a 20% subcutaneous immunoglobulin (IG) therapy, is well characterized in IG-experienced patients with primary immunodeficiency diseases (PID). Data from IG-naïve patients are limited. OBJECTIVE Simulate serum total immunoglobulin G (IgG) pharmacokinetic profiles in IG-naïve patients with PID for different Ig20Gly initiation and maintenance dosing regimens. METHODS A population pharmacokinetic model developed with data from pivotal phase 2/3 trials of weekly Ig20Gly in PID (NCT01412385, NCT01218438) was used to simulate pharmacokinetic profiles of IgG in various scenarios with 400- or 800-mg/kg total loading doses (administered as split doses over 1-2 weeks) and corresponding 100- or 200-mg/kg weekly maintenance doses, respectively. Endogenous baseline IgG levels (1.5, 2.0, 4.0, 6.0 g/L) were evaluated for each scenario; time to putative therapeutic target IgG trough level (7 g/L) was determined. RESULTS Serum IgG levels reached steady-state by approximately Week 12 for all scenarios and baseline endogenous IgG levels. Time to target trough level generally occurred sooner with 1-week versus 2-week loading schemes. Endogenous baseline IgG levels <4 g/L required a 1-week 800-mg/kg total loading dose to achieve target levels within 2 weeks. Both maintenance regimens sustained serum IgG above target level. CONCLUSIONS Simulations indicated IG-naïve patients with PID can achieve protective serum IgG levels within 1-3 weeks using appropriate Ig20Gly loading regimens. Patients with low endogenous IgG may benefit most from an 800-mg/kg/month loading dose. 400- or 800-mg/kg/month Ig20Gly maintenance regimens appeared adequate to maintain stable IgG levels. Serum IgG monitoring and clinical status can guide dosing parameters.
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Affiliation(s)
- Zhaoyang Li
- Takeda Development Center Americas, Inc, Cambridge, MA, USA.
| | | | | | - Barbara McCoy
- Baxalta Innovations GmbH, a Takeda Company, Vienna, Austria.
| | - Leman Yel
- Takeda Development Center Americas, Inc, Cambridge, MA, USA.
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6
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Lee JL, Mohamed Shah N, Makmor-Bakry M, Islahudin F, Alias H, Mohd Saffian S. A systematic review of population pharmacokinetic analyses of polyclonal immunoglobulin G therapy. Int Immunopharmacol 2021; 97:107721. [PMID: 33962225 DOI: 10.1016/j.intimp.2021.107721] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 04/10/2021] [Accepted: 04/22/2021] [Indexed: 12/20/2022]
Abstract
BACKGROUND Population pharmacokinetics (popPK) using the nonlinear mixed-effect (NLME) modeling approach is an essential tool for guiding dose individualization. Several popPK analyses using the NLME have been conducted to characterize the pharmacokinetics of immunoglobulin G (IgG). OBJECTIVE To summarize the current information on popPK of polyclonal IgG therapy. METHOD A systematic search was conducted in the PubMed and Web of Science databases from inception to December 2020. Additional relevant studies were also included by reviewing the reference list of the reviewed articles. All popPK studies that employed the NLME modeling approach were included and data were synthesized descriptively. RESULTS This review included seven studies. Most of the popPK models were developed in patients with primary immunodeficiency (PID). IgG pharmacokinetics was described as a two-compartment model in five studies, while it was described as a one-compartment model in two other studies. Among all tested covariates, weight was consistently identified as a significant predictor for clearance (CL) of IgG. Whereas, weight and disease type were found to be significant predictors for the volume of distribution in central compartment (Vc). In a typical 70 kg adult, the median estimated values of Vc and CL were 4.04 L and 0.144 L/day, respectively. The between subject variability of Vc was considered large. Only two studies evaluated their models using external data. CONCLUSIONS Seven popPK studies of IgG were found and discussed, with only weight being a significant covariate across all studies. Future studies linking pharmacokinetics with pharmacodynamics in PID and other patient populations are required.
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Affiliation(s)
- Jian Lynn Lee
- Centre for Quality Management of Medicines, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300 Kuala Lumpur, Malaysia
| | - Noraida Mohamed Shah
- Centre for Quality Management of Medicines, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300 Kuala Lumpur, Malaysia
| | - Mohd Makmor-Bakry
- Centre for Quality Management of Medicines, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300 Kuala Lumpur, Malaysia
| | - Farida Islahudin
- Centre for Quality Management of Medicines, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300 Kuala Lumpur, Malaysia
| | - Hamidah Alias
- Department of Pediatrics, UKM Medical Centre, Faculty of Medicine, Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, 56000 Cheras, Kuala Lumpur, Malaysia
| | - Shamin Mohd Saffian
- Centre for Quality Management of Medicines, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300 Kuala Lumpur, Malaysia.
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7
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Cinetto F, Neri R, Vianello F, Visentin A, Barilà G, Gianese S, Lanciarotta A, Milito C, Rattazzi M, Piazza F, Trentin L, Zambello R, Agostini C, Scarpa R. Subcutaneous immunoglobulins replacement therapy in secondary antibody deficiencies: Real life evidence as compared to primary antibody deficiencies. PLoS One 2021; 16:e0247717. [PMID: 33661940 PMCID: PMC7932095 DOI: 10.1371/journal.pone.0247717] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 02/12/2021] [Indexed: 12/31/2022] Open
Abstract
Secondary antibody deficiencies (SAD) may require immunoglobulin replacement therapy (IgRT). While the intravenous route (IVIG) is broadly considered effective in SAD, the use of subcutaneous immunoglobulins (SCIG) is mainly adopted from the experience in primary antibody deficiencies (PAD), where SCIG have been shown to perform as effective as IVIG. However, evidence-based data on SCIG administration in SAD patients are still insufficient. Herein we retrospectively evaluated the efficacy and safety profile of SCIG treatment in 131 SAD patients as compared to a group of 102 PAD patients. We found SCIG being equally effective in reducing annual infectious rate both in SAD and PAD patients. However, SAD patients required lower SCIG dosage and lower IgG through level to achieve similar biological effect in terms of infection burden, at the steady state. SAD patients also showed better correlation between SCIG dose and serum IgG achieved value. Furthermore, within SAD, SCIG were found to work irrespective of the underlying disease. Especially in Non-Hodgkin Lymphoma patients, whose indication to IgRT is still not included in all guidelines and for whom evidence-based data are still lacking, SCIG were as effective as in Chronic Lymphocytic Leukemia or Multiple Myeloma patients, and SCIG discontinuation, without evidence of B cell recovery, led to IgG decline and relapsed infections. Finally, treatment tolerance in SAD patients was comparable to the PAD cohort. Globally, our data suggest that SCIG, as already appreciated in PAD, represent a valuable option in SAD patients, independent on the disease leading to antibody deficiency.
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Affiliation(s)
- Francesco Cinetto
- Department of Medicine–DIMED, University of Padua, Padua, Italy
- Formerly Haematology and Clinical Immunology Unit, University of Padua, Padua, Italy
- Regional Center for Rare Immunological Diseases, Internal Medicine 1, Treviso Hospital, University of Padua, Padua, Italy
| | - Raffaella Neri
- Department of Medicine–DIMED, University of Padua, Padua, Italy
- Formerly Haematology and Clinical Immunology Unit, University of Padua, Padua, Italy
- Regional Center for Rare Immunological Diseases, Internal Medicine 1, Treviso Hospital, University of Padua, Padua, Italy
| | - Fabrizio Vianello
- Department of Medicine–DIMED, University of Padua, Padua, Italy
- Haematology and Clinical Immunology Unit, University of Padua, Padua, Italy
| | - Andrea Visentin
- Department of Medicine–DIMED, University of Padua, Padua, Italy
- Haematology and Clinical Immunology Unit, University of Padua, Padua, Italy
| | - Gregorio Barilà
- Department of Medicine–DIMED, University of Padua, Padua, Italy
- Haematology and Clinical Immunology Unit, University of Padua, Padua, Italy
| | - Sabrina Gianese
- Department of Medicine–DIMED, University of Padua, Padua, Italy
- Regional Center for Rare Immunological Diseases, Internal Medicine 1, Treviso Hospital, University of Padua, Padua, Italy
| | - Alison Lanciarotta
- Department of Medicine–DIMED, University of Padua, Padua, Italy
- Regional Center for Rare Immunological Diseases, Internal Medicine 1, Treviso Hospital, University of Padua, Padua, Italy
| | - Cinzia Milito
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - Marcello Rattazzi
- Department of Medicine–DIMED, University of Padua, Padua, Italy
- Regional Center for Rare Immunological Diseases, Internal Medicine 1, Treviso Hospital, University of Padua, Padua, Italy
| | - Francesco Piazza
- Department of Medicine–DIMED, University of Padua, Padua, Italy
- Haematology and Clinical Immunology Unit, University of Padua, Padua, Italy
| | - Livio Trentin
- Department of Medicine–DIMED, University of Padua, Padua, Italy
- Haematology and Clinical Immunology Unit, University of Padua, Padua, Italy
| | - Renato Zambello
- Department of Medicine–DIMED, University of Padua, Padua, Italy
- Haematology and Clinical Immunology Unit, University of Padua, Padua, Italy
| | - Carlo Agostini
- Department of Medicine–DIMED, University of Padua, Padua, Italy
- Formerly Haematology and Clinical Immunology Unit, University of Padua, Padua, Italy
- Regional Center for Rare Immunological Diseases, Internal Medicine 1, Treviso Hospital, University of Padua, Padua, Italy
- * E-mail:
| | - Riccardo Scarpa
- Department of Medicine–DIMED, University of Padua, Padua, Italy
- Formerly Haematology and Clinical Immunology Unit, University of Padua, Padua, Italy
- Regional Center for Rare Immunological Diseases, Internal Medicine 1, Treviso Hospital, University of Padua, Padua, Italy
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8
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Lee JL, Mohd Saffian S, Makmor-Bakry M, Islahudin F, Alias H, Noh LM, Ismail IH, Mohamed Shah N. Population pharmacokinetic modelling of intravenous immunoglobulin in patients with predominantly antibody deficiencies. Br J Clin Pharmacol 2021; 87:2956-2966. [PMID: 33377197 DOI: 10.1111/bcp.14712] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 12/07/2020] [Accepted: 12/20/2020] [Indexed: 02/06/2023] Open
Abstract
AIMS There is considerable interpatient variability in the pharmacokinetics (PK) of intravenous immunoglobulin G (IVIG), causing difficulty in optimizing individual dosage regimen. This study aims to estimate the population PK parameters of IVIG and to investigate the impact of genetic polymorphism of the FcRn gene and clinical variability on the PK of IVIG in patients with predominantly antibody deficiencies. METHODS Patients were recruited from four hospitals. Clinical data were recorded and blood samples were taken for PK and genetic studies. Population PK parameters were estimated by nonlinear mixed-effects modelling in Monolix®. Models were evaluated using the difference in objective function value, goodness-of-fit plots, visual predictive check and bootstrap analysis. Monte Carlo simulation was conducted to evaluate different dosing regimens for IVIG. RESULTS A total of 30 blood samples were analysed from 10 patients. The immunoglobulin G concentration data were best described by a one-compartment model with linear elimination. The final model included both volume of distribution (Vd) and clearance (CL) based on patient's individual weight. Goodness-of-fit plots indicated that the model fit the data adequately, with minor model mis-specification. Genetic polymorphism of the FcRn gene and the presence of bronchiectasis did not affect the PK of IVIG. Simulation showed that 3-4-weekly dosing intervals were sufficient to maintain IgG levels of 5 g L-1 , with more frequent intervals needed to achieve higher trough levels. CONCLUSIONS Body weight significantly affects the PK parameters of IVIG. Genetic and other clinical factors investigated did not affect the disposition of IVIG.
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Affiliation(s)
- Jian Lynn Lee
- Centre for Quality Management of Medicines, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia.,Department of Pharmacy, Tengku Ampuan Rahimah Hospital, Ministry of Health Malaysia, Klang, Selangor Darul Ehsan, Malaysia
| | - Shamin Mohd Saffian
- Centre for Quality Management of Medicines, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Mohd Makmor-Bakry
- Centre for Quality Management of Medicines, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Farida Islahudin
- Centre for Quality Management of Medicines, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Hamidah Alias
- Department of Pediatrics, UKM Medical Centre, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur, Malaysia
| | - Lokman Mohd Noh
- Department of Pediatrics, Tunku Azizah Women & Children Hospital, Ministry of Health Malaysia, Kuala Lumpur, Malaysia
| | - Intan Hakimah Ismail
- Department of Pediatrics, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Selangor Darul Ehsan, Malaysia
| | - Noraida Mohamed Shah
- Centre for Quality Management of Medicines, Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
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Moschese V, Canessa C, Trizzino A, Martire B, Boggia GM, Graziani S. Pediatric subset of primary immunodeficiency patients treated with SCIG: post hoc analysis of SHIFT and IBIS pooled data. Allergy Asthma Clin Immunol 2020; 16:80. [PMID: 32944034 PMCID: PMC7491303 DOI: 10.1186/s13223-020-00478-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 08/29/2020] [Indexed: 12/30/2022] Open
Abstract
Background Primary immunodeficiencies (PID) constitute a heterogeneous group of more than 350 monogenetic diseases. PID patients with antibody impairment require lifelong administration of immunoglobulin G replacement therapy, administered either intravenously (IVIG) or subcutaneously (SCIG). Although the effectiveness of weekly and biweekly (every other week) SCIG administration has been shown in several trials, data on the viability of these two regimens in pediatric PID patients are sparse. Methods Data on the pediatric subsets of PID patients enrolled in SHIFT (weekly) and IBIS (biweekly) studies were pooled and analyzed to indirectly compare two different 20%-concentrated SCIG (Hizentra®) regimens. The primary endpoints were to evaluate trough IgG levels and cumulative monthly doses; the secondary endpoint was to analyze incidence of infections. Results Fifteen and 13 children from the SHIFT and IBIS studies were included, respectively. Cumulative 20%-concentrated SCIG monthly dose was slight lower for the biweekly regimen (Δ = − 2.04, 90% CI − 8.3 to 4.23). However, the trough IgG levels were similar between the two groups (Δ = 0.28, 90% CI − 0.51 to 1.07) and constantly above the threshold of 5 g/L. After adjusting for potential confounders, the annualized rate of infections was similar between SHIFT and IBIS patients (incidence rate ratio = 1.09, 90% CI 0.72–1.67); only 1 serious bacterial infection was experienced by a patient in the IBIS group. Conclusion In pediatric PID patients, weekly and biweekly Hizentra® administrations appeared equally effective treatment options.
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Affiliation(s)
- Viviana Moschese
- Pediatric Immunopathology and Allergology Unit, University of Rome Tor Vergata, Policlinico Tor Vergata, Viale Oxford, 81, 00133 Rome, Italy
| | - Clementina Canessa
- Pediatric Immunology Meyer Children's Hospital University of Florence, Viale Pieraccini 24, 50139 Florence, Italy
| | - Antonino Trizzino
- Department of Pediatric Hematology and Oncology, ARNAS Civico Di Cristina and Benfratelli Hospital, Palermo, Italy
| | - Baldassarre Martire
- Pediatric Unit, "Mons. Dimiccoli" Hospital, Viale Ippocrate, 70051 Barletta, Italy
| | | | - Simona Graziani
- Pediatric Immunopathology and Allergology Unit, University of Rome Tor Vergata, Policlinico Tor Vergata, Viale Oxford, 81, 00133 Rome, Italy
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10
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Population pharmacokinetic analysis of weekly and biweekly IgPro20 (Hizentra®) dosing in patients with primary immunodeficiency. Int Immunopharmacol 2020; 81:106005. [DOI: 10.1016/j.intimp.2019.106005] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 10/23/2019] [Accepted: 10/25/2019] [Indexed: 11/22/2022]
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Luo D, Baheti G, Tortorici MA, Hofmann J, Rojavin MA. Pharmacometric Analysis of IgPro10 in Japanese and Non-Japanese Patients With Primary Immunodeficiency. Clin Ther 2020; 42:196-209.e5. [PMID: 31910997 DOI: 10.1016/j.clinthera.2019.11.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 11/04/2019] [Accepted: 11/20/2019] [Indexed: 01/11/2023]
Abstract
PURPOSE Immunoglobulin (Ig) G replacement therapy, administered intravenously (IVIG) or subcutaneously (SCIG), is the standard treatment in patients with primary immunodeficiencies (PID). We aimed to characterize the pharmacokinetic (PK) characteristics of serum IgG following administration of IgPro10 every 3 or 4 weeks in Japanese patients with PID, and compare with PK in non-Japanese patients. A previously developed population PK (PPK) model was validated, and predicted parameters were compared with the results from the clinical study. METHODS The previously developed PPK model, containing IgG concentration data from 5 non-Japanese studies, was supplemented with data from 3 Japanese studies of IgPro10 or IgPro20 to compare the IgG PK parameters between Japanese and non-Japanese patients. The model was externally validated by simulating IgG concentration-time profiles in Japanese patients to predict serum IgG PK characteristics and to compare them with observed Japanese PK data from Study IgPro10_3004. FINDINGS The analysis included 4502 serum IgG concentration values (from 34 Japanese and 168 non-Japanese patients). PPK estimates from the current analysis demonstrated a clearance (CL) of 0.139 L/d, central volume (V2) of 4.01 L, inter-compartmental clearance (Q) of 0.30 L/d, and peripheral volume of 3.51 L. These results were consistent with those from the previously published PPK model, with similar bootstrap means and 95% CIs. Goodness-of-fit criteria indicated that the final PPK model was consistent with observed data, with no systemic bias in model prediction. Prediction-corrected visual predictive checks confirmed a good description of data on both SCIG and IVIG. PK parameters were equivalent between Japanese and non-Japanese patients. Body weight was determined to be a significant covariate on both CL and V2. Simulated and observed AUC and maximum and minimum serum IgG concentrations were similar, with 90% CIs overlapping between simulated and observed IgG concentrations in Japanese patients. IMPLICATIONS PK parameter estimates of serum IgG were similar between Japanese and non-Japanese patients with PID. The PPK model, updated with Japanese data, was consistent with the previously published PPK model and could accurately predict both individual and population serum IgG concentration-time profiles following IgPro10 IV infusions every 3 or 4 weeks. EudraCT identifier: 2016-001631-12.
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Affiliation(s)
- Dandan Luo
- CSL Behring LLC, King of Prussia, PA, USA.
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12
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Rojavin MA, Chapdelaine H, Tortorici MA, Praus M, Baheti G, Zhang Y, Hofmann J, Labrosse R, Dicaire R, Haddad E. Pharmacokinetic Analysis of Weekly Versus Biweekly IgPro20 Dosing in Patients With Primary Immunodeficiency. Clin Pharmacol Drug Dev 2019; 9:664-670. [PMID: 31814328 PMCID: PMC7586812 DOI: 10.1002/cpdd.753] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Accepted: 10/14/2019] [Indexed: 01/03/2023]
Abstract
Flexible dosing of IgPro20 (Hizentra®, CSL Behring, King of Prussia, Pennsylvania) maintains normal serum immunoglobulin G (IgG) levels in patients with primary immunodeficiencies (PID). Until now, clinical trials testing the pharmacokinetic (PK) characteristics of serum IgG of weekly and biweekly subcutaneous IgG therapy were not published. This is the first study assessing PK characteristics following weekly and biweekly IgPro20 in patients with PID. The PK study was conducted in 2 parts: weekly dosing (12 weeks) and biweekly dosing (up to 12 months). Serum IgG concentration-time data were analyzed using noncompartmental methods to generate PK parameters. Fifteen patients provided PK samples for both dosing regimens. For weekly and biweekly regimens, mean doses per infusion were 109 and 213 mg/kg, respectively, and median tmax was 2.0 and 3.02 days, respectively. The mean Ctrough values were similar in weekly and biweekly regimens (10.21 and 10.13 g/dL, respectively). The geometric mean ratios (GMRs) with 90% confidence intervals of biweekly to weekly Cmax and Ctrough were 1.10 (1.06-1.13) and 0.98 (0.95-1.01), respectively. The GMR of dAUC was 1.07 (1.03-1.10). This PK analysis demonstrated similar systemic IgG exposure after weekly and biweekly IgPro20 dosing with an equivalent monthly dose in patients with PID.
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Affiliation(s)
| | - Hugo Chapdelaine
- Department of Medicine, Centre Hospitalier de l'Université de Montréal, Université de Montréal, Montreal, Quebec, Canada.,Institut de Recherches Cliniques de Montreal, Montreal, Quebec, Canada
| | | | | | | | - Ying Zhang
- CSL Behring LLC, King of Prussia, Pennsylvania, USA
| | | | - Roxane Labrosse
- CHU Sainte-Justine, University of Montreal, Montreal, Quebec, Canada
| | - Renée Dicaire
- CHU Sainte-Justine, University of Montreal, Montreal, Quebec, Canada
| | - Elie Haddad
- CHU Sainte-Justine, University of Montreal, Montreal, Quebec, Canada.,Department of Pediatrics and Department of Microbiology, Infectiology and Immunology, University of Montreal, Montreal, Quebec, Canada
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13
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Dumas T, Berry NS, Wolfsegger M, Jolles S, McCoy B, Yel L. Population pharmacokinetic modeling and simulation of immunoglobulin exposure with varying dosing intervals of subcutaneous immunoglobulin 20% (Ig20Gly) in patients with primary immunodeficiency diseases. Int Immunopharmacol 2019; 71:404-410. [DOI: 10.1016/j.intimp.2019.03.034] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 03/14/2019] [Accepted: 03/19/2019] [Indexed: 01/04/2023]
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14
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Tortorici MA, Lawo JP, Weide R, Jochems J, Puli S, Hofmann J, Pfruender D, Rojavin MA. Privigen® has similar pharmacokinetic properties in primary and secondary immune deficiency. Int Immunopharmacol 2019; 66:119-126. [DOI: 10.1016/j.intimp.2018.11.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 11/05/2018] [Accepted: 11/06/2018] [Indexed: 10/27/2022]
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15
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Mallick R, Jolles S, Kanegane H, Agbor-Tarh D, Rojavin M. Treatment Satisfaction with Subcutaneous Immunoglobulin Replacement Therapy in Patients with Primary Immunodeficiency: a Pooled Analysis of Six Hizentra® Studies. J Clin Immunol 2018; 38:886-897. [PMID: 30465179 PMCID: PMC6292975 DOI: 10.1007/s10875-018-0562-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 10/15/2018] [Indexed: 12/21/2022]
Abstract
Purpose Primary immunodeficiency diseases (PIDDs) are a heterogenous group of disorders characterized by intrinsic impairment in the immune system. Most patients with PIDD require life-long immunoglobulin G replacement therapy, which has been shown to reduce the rate of infections and, related hospitalizations and reduce health-related quality of life (HRQOL). Here, treatment satisfaction and HRQOL in patients with PIDD was evaluated upon switching from intravenous (IVIG) or subcutaneous immunoglobulins (SCIGs) to 20% SCIG (Hizentra®), and during long-term steady-state Hizentra® treatment. Methods Analyses were based on two pivotal (switch) and four extension/follow-up (maintenance) Phase III studies of Hizentra® conducted in Europe (EU), Japan (JP), and the United States (US). Two validated questionnaires were used: Life Quality Index (LQI) for assessment of IgG-specific perceptions of HRQOL and Short Form 36 version 2 (SF-36v2). Results In the EU and JP switch studies, there was significant and meaningful improvement from Screening in LQI domain scores at all time points, largely driven by patients switching from IVIG to SCIG. In the EU switch study, there were also significant increases in mean SF-36v2 domain scores for Physical Function and General Health from Screening to Week 12. These improvements were observed also at Week 24. Overall, LQI and SF-36v2 domain scores were generally sustained in the maintenance studies. Conclusions These results showed that switching patients from IVIG to SCIG improves patient self-reported health status and IgG-specific HRQOL perception. The maintenance studies generally showed no deterioration of this improved health status over a long follow-up period. Electronic supplementary material The online version of this article (10.1007/s10875-018-0562-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
| | | | - Hirokazu Kanegane
- Department of Child Health and Development, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
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16
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Jolles S, Rojavin MA, Lawo JP, Nelson R, Wasserman RL, Borte M, Tortorici MA, Imai K, Kanegane H. Long-Term Efficacy and Safety of Hizentra® in Patients with Primary Immunodeficiency in Japan, Europe, and the United States: a Review of 7 Phase 3 Trials. J Clin Immunol 2018; 38:864-875. [PMID: 30415311 PMCID: PMC6292970 DOI: 10.1007/s10875-018-0560-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 10/04/2018] [Indexed: 12/28/2022]
Abstract
Many patients with primary immunodeficiency (PID) require immunoglobulin G (IgG) replacement therapy, delivered as intravenous IgG (IVIG) or subcutaneous IgG (SCIG). We aim to identify trends in efficacy and safety that would not be evident in individual studies of small patient numbers. Seven open-label, Phase 3, prospective, multicenter studies of the efficacy and safety of Hizentra® (a SCIG), conducted in Japan, Europe, and the US were summarized. Overall, 125 unique patients received 15,013 weekly infusions during a total observation period of 250.9 patient-years. Mean weekly doses of Hizentra® were 83.22–221.3 mg/kg body weight; infusion rates per patient (total body rate) were 25.2–49.3 mL/h across studies. The rates of infections and serious bacterial infections were 3.10 and 0.03 events per patient/year, respectively. Annualized rates of days hospitalized due to infection, out of work/school, and prophylactic antibiotic use were 0.95, 5.14, and 36.78 per patient, respectively. For the equivalent monthly dose, weekly Hizentra® SCIG administration resulted in expectedly-increased serum IgG trough levels in patients switching from IVIG, and maintained levels in patients switching from previous SCIG. Adverse events (AEs) totaled 5039 (events/infusion 0.094–0.773), almost all of which were mild/moderate. Three thousand one hundred ninety-seven were considered treatment-related, the most common of which were injection site reactions (2919 events; 0.001–0.592 AEs per infusion). Systemic AEs were very uncommon. The results from these seven studies indicate that Hizentra® therapy was both efficacious and well tolerated during long-term treatment. This is particularly important in patients with PID, who may require lifelong IgG replacement therapy.
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Affiliation(s)
- Stephen Jolles
- Immunodeficiency Centre for Wales, University Hospital of Wales, Cardiff, UK.
| | | | | | - Robert Nelson
- School of Medicine and the Melvin and Bren Simon Cancer Center, Indiana University, Indianapolis, IN, USA
| | | | - Michael Borte
- Hospital St. Georg GmbH Leipzig, Academic Teaching Hospital of the University of Leipzig, Leipzig, Germany
| | | | - Kohsuke Imai
- Department of Community Pediatrics, Perinatal and Maternal Medicine, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Hirokazu Kanegane
- Department of Child Health and Development, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
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17
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Biweekly Hizentra® in Primary Immunodeficiency: a Multicenter, Observational Cohort Study (IBIS). J Clin Immunol 2018; 38:602-609. [PMID: 29951948 PMCID: PMC6061090 DOI: 10.1007/s10875-018-0528-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 06/19/2018] [Indexed: 12/29/2022]
Abstract
Immunoglobulin G (IgG) replacement therapy is a standard treatment for patients with primary immunodeficiency diseases (PIDs). Hizentra®, a 20% human subcutaneous IgG (SCIG), is approved for biweekly administration for PIDs. The aim of the multicenter IBIS study was to prospectively investigate the efficacy of biweekly Hizentra® compared with previous IVIG or SCIG treatment regimens in patients with PIDs. The study consisted of a 12-month retrospective period followed by 12-month prospective observational period. The main endpoints included pre-infusion IgG concentrations, proportion of patients with serious bacterial infections (SBIs), other infections, hospitalizations due to PID-related illnesses, and days with antibiotics during the study periods. Of the 36 patients enrolled in the study, 35 patients continued the study (mean age 26.1 ± 14.4 years; 68.6% male). The mean pre-infusion IgG levels for prior immunoglobulin regimens during the retrospective period (7.84 ± 2.09 g/L) and the prospective period (8.55 ± 1.76 g/L) did not show any significant variations (p = 0.4964). The mean annual rate of SBIs/patient was 0.063 ± 0.246 for both prospective and retrospective periods. No hospitalizations related to PIDs were reported during the prospective period versus one in the retrospective period. All patients were either very (76.5%) or quite (23.5%) satisfied with biweekly Hizentra® at the end of the study. In conclusion, the IBIS study provided real-world evidence on the efficacy of biweekly Hizentra® in patients with PIDs, thus verifying the data generated by the pharmacometric modeling and simulation study in a normal clinical setting.
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de Inocencio J, Enríquez-Merayo E, Casado R, González-Granado LI. Subcutaneous Immunoglobulin in Refractory Juvenile Dermatomyositis. Pediatrics 2016; 137:peds.2015-3537. [PMID: 26966131 DOI: 10.1542/peds.2015-3537] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/23/2015] [Indexed: 11/24/2022] Open
Abstract
Juvenile dermatomyositis (JDM) is the most common form of juvenile idiopathic inflammatory myopathy. We report a child with steroid-dependent JDM refractory to hydroxychloroquine and subcutaneous methotrexate who experienced systemic reactions to intravenous immunoglobulin and was successfully treated with subcutaneous immunoglobulin. This form of therapy has been shown to be safe, has a very low rate of adverse effects, does not require hospital admission, reduces the number of missed school days, and decreases the costs associated with treatment.
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Affiliation(s)
| | | | | | - Luis Ignacio González-Granado
- Section of Pediatric Immunodeficiency Diseases, Department of Pediatrics, University Hospital 12 de Octubre, Universidad Complutense de Madrid and Instituto de Investigación Hospital 12 Octubre, Madrid, Spain
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19
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Gardulf A. Clinical experiences in primary and secondary immunodeficiencies and immune-mediated conditions using Gammanorm(®). Immunotherapy 2016; 8:633-47. [PMID: 27020964 DOI: 10.2217/imt-2015-0013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Treatment for primary and secondary immunodeficiency disorders focuses on prevention and management of infections, using immunoglobulin G (IgG) replacement therapy with regular intravenous or subcutaneous IgG (SCIG) infusions. SCIG therapy has many advantages including improved efficacy and tolerability, enhanced patient satisfaction and lower costs. A number of SCIG preparations are available, including Gammanorm(®) (Octapharma AG), a ready-to-use 16.5% liquid preparation of IgG, with low viscosity, well suited to self-administration and a long history of use. Clinical experience with Gammanorm has shown that it is effective and well tolerated in children and adults, including pregnant women, for primary and secondary immunodeficiency disorders. Recent data also suggest SCIG may have a role in the treatment of certain immune-mediated conditions.
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Affiliation(s)
- Ann Gardulf
- The Unit for Clinical Nursing Research & Clinical Research in Immunotherapy, Division of Clinical Immunology, Department of Laboratory Medicine and Transfusion Medicine, Karolinska Institutet, SE-141 83 Huddinge, Stockholm, Sweden.,The Japanese Red Cross Institute for Humanitarian Studies, Tokyo, Japan
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20
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Rodieux F, Wilbaux M, van den Anker JN, Pfister M. Effect of Kidney Function on Drug Kinetics and Dosing in Neonates, Infants, and Children. Clin Pharmacokinet 2015; 54:1183-204. [PMID: 26138291 PMCID: PMC4661214 DOI: 10.1007/s40262-015-0298-7] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Neonates, infants, and children differ from adults in many aspects, not just in age, weight, and body composition. Growth, maturation and environmental factors affect drug kinetics, response and dosing in pediatric patients. Almost 80% of drugs have not been studied in children, and dosing of these drugs is derived from adult doses by adjusting for body weight/size. As developmental and maturational changes are complex processes, such simplified methods may result in subtherapeutic effects or adverse events. Kidney function is impaired during the first 2 years of life as a result of normal growth and development. Reduced kidney function during childhood has an impact not only on renal clearance but also on absorption, distribution, metabolism and nonrenal clearance of drugs. 'Omics'-based technologies, such as proteomics and metabolomics, can be leveraged to uncover novel markers for kidney function during normal development, acute kidney injury, and chronic diseases. Pharmacometric modeling and simulation can be applied to simplify the design of pediatric investigations, characterize the effects of kidney function on drug exposure and response, and fine-tune dosing in pediatric patients, especially in those with impaired kidney function. One case study of amikacin dosing in neonates with reduced kidney function is presented. Collaborative efforts between clinicians and scientists in academia, industry, and regulatory agencies are required to evaluate new renal biomarkers, collect and share prospective pharmacokinetic, genetic and clinical data, build integrated pharmacometric models for key drugs, optimize and standardize dosing strategies, develop bedside decision tools, and enhance labels of drugs utilized in neonates, infants, and children.
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Affiliation(s)
- Frederique Rodieux
- Department of Pediatric Clinical Pharmacology, Pediatric Pharmacology and Pharmacometrics Research Center, University Children's Hospital (UKBB), University of Basel, Spitalstrasse 33, CH-4056, Basel, Switzerland.
| | - Melanie Wilbaux
- Department of Pediatric Clinical Pharmacology, Pediatric Pharmacology and Pharmacometrics Research Center, University Children's Hospital (UKBB), University of Basel, Spitalstrasse 33, CH-4056, Basel, Switzerland
| | - Johannes N van den Anker
- Department of Pediatric Clinical Pharmacology, Pediatric Pharmacology and Pharmacometrics Research Center, University Children's Hospital (UKBB), University of Basel, Spitalstrasse 33, CH-4056, Basel, Switzerland.
- Division of Pediatric Clinical Pharmacology, Children's National Health System, Washington, DC, USA.
- Intensive Care, Erasmus Medical Center-Sophia Children's Hospital, Rotterdam, The Netherlands.
| | - Marc Pfister
- Department of Pediatric Clinical Pharmacology, Pediatric Pharmacology and Pharmacometrics Research Center, University Children's Hospital (UKBB), University of Basel, Spitalstrasse 33, CH-4056, Basel, Switzerland
- Quantitative Solutions LP, Menlo Park, CA, USA
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21
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Rojavin M, Sidhu J, Pfister M, Hubsch A. Subcutaneous immunoglobulin loading regimens for previously untreated patients with primary antibody deficiency. Clin Exp Immunol 2015; 178 Suppl 1:146-8. [PMID: 25546799 DOI: 10.1111/cei.12548] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Affiliation(s)
- M Rojavin
- CSL Behring LLC, King of Prussia, PA, USA
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22
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Jolles S, Jordan SC, Orange JS, van Schaik IN. Immunoglobulins: current understanding and future directions. Clin Exp Immunol 2015; 178 Suppl 1:163-8. [PMID: 25546806 DOI: 10.1111/cei.12555] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Affiliation(s)
- S Jolles
- University Hospital of Wales, Cardiff, UK
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23
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Kerr J, Quinti I, Eibl M, Chapel H, Späth PJ, Sewell WAC, Salama A, van Schaik IN, Kuijpers TW, Peter HH. Is dosing of therapeutic immunoglobulins optimal? A review of a three-decade long debate in europe. Front Immunol 2014; 5:629. [PMID: 25566244 PMCID: PMC4263903 DOI: 10.3389/fimmu.2014.00629] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Accepted: 11/25/2014] [Indexed: 12/13/2022] Open
Abstract
The consumption of immunoglobulins (Ig) is increasing due to better recognition of antibody deficiencies, an aging population, and new indications. This review aims to examine the various dosing regimens and research developments in the established and in some of the relevant off-label indications in Europe. The background to the current regulatory settings in Europe is provided as a backdrop for the latest developments in primary and secondary immunodeficiencies and in immunomodulatory indications. In these heterogeneous areas, clinical trials encompassing different routes of administration, varying intervals, and infusion rates are paving the way toward more individualized therapy regimens. In primary antibody deficiencies, adjustments in dosing and intervals will depend on the clinical presentation, effective IgG trough levels and IgG metabolism. Ideally, individual pharmacokinetic profiles in conjunction with the clinical phenotype could lead to highly tailored treatment. In practice, incremental dosage increases are necessary to titrate the optimal dose for more severely ill patients. Higher intravenous doses in these patients also have beneficial immunomodulatory effects beyond mere IgG replacement. Better understanding of the pharmacokinetics of Ig therapy is leading to a move away from simplistic "per kg" dosing. Defective antibody production is common in many secondary immunodeficiencies irrespective of whether the causative factor was lymphoid malignancies (established indications), certain autoimmune disorders, immunosuppressive agents, or biologics. This antibody failure, as shown by test immunization, may be amenable to treatment with replacement Ig therapy. In certain immunomodulatory settings [e.g., idiopathic thrombocytopenic purpura (ITP)], selection of patients for Ig therapy may be enhanced by relevant biomarkers in order to exclude non-responders and thus obtain higher response rates. In this review, the developments in dosing of therapeutic immunoglobulins have been limited to high and some medium priority indications such as ITP, Kawasaki' disease, Guillain-Barré syndrome, chronic inflammatory demyelinating polyradiculoneuropathy, myasthenia gravis, multifocal motor neuropathy, fetal alloimmune thrombocytopenia, fetal hemolytic anemia, and dermatological diseases.
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Affiliation(s)
- Jacqueline Kerr
- Section Poly- and Monoclonal Antibodies, Paul Ehrlich Institut, Langen, Germany
| | - Isabella Quinti
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | | | - Helen Chapel
- Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Peter J. Späth
- Institute of Pharmacology, University of Bern, Bern, Switzerland
| | | | - Abdulgabar Salama
- Zentrum für Transfusionsmedizin u. Zelltherapie, Charité, Berlin, Germany
| | - Ivo N. van Schaik
- Department of Neurology, Academic Medical Center (AMC), University of Amsterdam, Amsterdam, Netherlands
| | - Taco W. Kuijpers
- Department of Pediatric Hematology, Immunology and Infectious disease, Academic Medical Center (AMC), University of Amsterdam, Amsterdam, Netherlands
| | - Hans-Hartmut Peter
- Centrum für chronische Immunodeficienz (CCI), University Medical Centre, University of Freiburg, Freiburg im Breisgau, Germany
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